kaiser



Feb. 13, 1923. 1,445,323.

G. KAISER.

TRANSMISSION MECHANISM.

FILED MAII. 2, I921. 2 SHEETS---SHEET I.

I 5 II IT J a W MM 1?? gawk- Fee. 13, 1923- .rnrrnrrrict.

enonen Kerstin, on ST. LOUIS, ivrrssounr.

ten of the United States and r ERA f Ell Application "filed March it,

lie it known that 1, (license h \isiin, a citil suln'lgr at ht.

Louis, h lissouri, have invented the newnnd. us l .ln'iprovement in'llransmiesujin.hi1

anisun of wl'iich the following is a specifics tion. a I

This invention relates to transmit-emu nunxhauism, and more particularly to that classol. rearing; designed to providea; releasable connection betwcenlhe driven ma chimsry and the (hiring source. known example of such i-caring is the clutch of an automobile, and this invention is particularly designed for use in plareof the clutch of an automobile.

it is well known that clutches i'if the traious standard. designs have one very um esirable feature, in that they are liable to rip too suddenly so as to start the connected l with a jerk, which, in tl'ie caseof an autoinobile particularly, 1 decidedly disa gi'eeable. p

One of the objects of this invention, therefore, is to provide means for coiuiecstinp a driving; source with its load in such a way that theload may be started gradually and without jerking" i Another object of this invention is to providesuch a connection in which the rapidity with which the device picks up the loa can be accurately controlled by the operetor.

ure 2: is an end elevation of l igure l lv, i as a section on, hue Ri -o. hinthe means for ophousing which may be cylindrical in form.

The. housing 1 is provided with a partition 52 forming an outer annular chamber 3. A. series of cylinders i are formed integral with the housingand have their axes extending radially toward the axis of the housing. The inner ends of the cylinders 4: may

be connected by means of a web 5 adapted to additionally support the enr of the cylinders and to render them run d.

TAG cylinders 41- are bored to receive sleeve 3181:0311 .MECIIANISM.

.1921. Serial No. 4x 1911853.

valves 13 fitted to the cylinders and having ports j?" adapted to connnunicate with. the adjacent ports 8 opening through the cylinder walls to communicate with the chamber 53. These valves are so arranged that they may be rotated within the cylinders so as to move the ports 7 out of registry with the ports 8, thereby cuttii' p; off communication between the interiorof the valves (5 and. the chamber 3. Each valve is held in place by a. suitable plug 9. valve is bored to receive a piston 10 which may he of any usual construction and adapt ed to work within the sleeve 6. llachpistou 1.0 isconnected by means of a pitman 1 fto the crank 12 of the crank shaft 13.

The axes of the cylinders 4 are offsetwith respect to one another along; the axis ofthe housing so that the several. pitinen 11 may he connected side by side to the same crank By this construction, it will he evident that when the shaft 13 rotated with: rcspect to the housing 1, the pistons 10 will all work baclrand forth in their respective cylinders with a difference of phase of onequarter of a revolution. 1 l

[Each valve 6 is provided. at its inner extremity with gear teeth abouta portion of its circumference. Slidahly mountedin the web 5 are two double racks havin the form shown in Figure l in which a common shank 16 carries two racks 17 extending therefrom at right angles to each other. These racks 17' are provided with teeth 18 adapted to mesh with the gear teeth 14-. of the valves. The shanks 16 of these racks are slidably mounted in'slecves: 19 in the housing and are connected exteriorly to the housing by a. yolre 20 s iuitably' connected to a sleeve 21 slidaliily.niounted on the eha ltli'l. The up ere-ting. lever or footpedal may be connected in any usual manner to thr-s sleeve 21. A. covei plate i2 is provided for the housing It and carries a suitable hearing 23 for the end of the crank shaft 13. A shaft 24: may be connected in any suitable manner to the platenQiZ. Either of the shafts 1301* 24c may then he a driving shaft andthe other will either be driven thereby or will he: ah lowed to remain stationary according to the manner in which the valves 6 are operated.

The operation of the device is as follows:

. lVith the ports 7 and 8 open the chamber 3 and the interior of the cylinders are filled with oil or other suitable fluid. This may The interior of. each i :be done by removing the plug 25 provided .for that purpose.

When the chamber is. filled completely fulhthe plug 25 is again inserted to seal the chamber, With the chamber 3 and the cylinders 4 full of oil and the ports 7 and 8 open, if, say the shaft 1 13V be rotated, the housing will remain stationary, beingheld by the load connected tothe shaft 24 and the pistons 10 will, work back and forthfin the cylinders, and by such movement-will cause the oil to circulate backhndiorth between the cylinders andthrough the -chamber 3. If nowby movement of the racks 17, the valves are x partly closed, it being understood that said valves are arranged to work substantially in nnison,the flow of oil from one'cylinder to another throng}; the chamber '3 will be retarded' with the result that the relative movem'ent'between the crank shaft 13 and the housin'g l will be retarded by the resistance to the movement of the pistons 10.

* The resu'ltof this will he that a torque will be; exerted upon the housing 1 and will be transmitted to-the shaft 24. When the valves 6 are closed to a sufiicient extent this torque will become greatenough to start the load connected-to the shaft 2d, which load will the'njbe driven at a speed less than that of theshaft13 accordin to the extent of the port openings adjusted byt he valves. Upon completelyclosingthe valves 6, the oil within any cylinderwill be trappedtherein and unable to escape with the result that relative movement between the -pistons 10 and the cylinders 4 will be impossible, and the housing' 1; will then be-carried'around by the shaft 13 "and the speed of the shaft 24 will madein details of construction without dcpartinglfrom the spirit of thisinvention; it is, therefore, =to b,e understood that this invention isnot to be limited to the specific details shown and described.

gums is claimed is: y '-'-1'."Tr' nsmission mechanism, comprising, a revolt: 1e "housing constructed to provide a cha'l liber and cylinders, sleevevalves in described the invention, what said cylinders adapted to control communication between said cylinders and said chamber, pistons working in said valves, a crank shaft connected with said pistons, and means for o crating said valves.

' 2. l ransmission mechanism, comprising, a revoluble housing constructed to provide a chamber and cylinders, sleeve valves in said cylinders adapted to control communication between said cylinders and said chamber, pistons working in said valves, a crank shaft connected with said pistons, and means extending exterior of said housing for operatin said valves.

3. 'I ransmission mechanism, comprising, a revoluble housing constructed to provide a chamber and cylinders, sleeve valves revolubly mounted in said cylinders adapted to control communication between said cylinders and said chamber, pistons working in said valves, a crank shaft connected with said pistons, and means for operating said valves.

4. Transmission mechanism, comprising, a revoluble housing constructed to provide a chamber and cylinders, sleeve valves in said cylinders adapted to control communication between said cylinders and said chamber, teeth on said valves, racks adapted to engage said teeth to operate said valves, pistons working in said valves, a crank shaft connected with said pistons, and means for moving said racks to operate said valves.

5. Transmission mechanism, comprising, a revoluble housing constructed to provide a chamber and cylinders, sleeve valves in said cylinders adapted to control communication between Said cylinders and said chamber, teeth on said valves, a rack adapted to en age said teeth to operate several of said va ves, pistons working in said valves, a crank shaft connected with said pistons,and means for moving said racks to operate said valves.

6. Transmission mechanism, comprisingi a'revoluble housing constructed to provide alchamber and cylinders, sleeve valves in said cylinders adapted to control communication between said cylinders and said chamber, teeth on said valves, a web connecting said cylinders. 11 rack on said web adapted to engage said teeth to operate said valves. pistons working in said valves, a crank shaft connected with said pistons, and means for moving said racks to operate said valves.

In testimony whereof I afiix my signature this 23rd day of Feb, I921.

GEORGE KAISER. 

